Shock-absorber.



H. DODGE. SHOCK ABSORBER.

APPLICATION FILED 0013.20, 1913.

' Patented May 12, 1914.

g a I ZSHEETPr-BHEET 1.

Ill L/ I, Q 0

1 4 km o 51 awuawcoz H-DOUGE qWi twzooco H. DODGE.

SHOCK ABSORBER.

APPLICATION-FILED 00120, 1913.

Patented May 12, 1914.

2 BHEETS-SHBBT 2.

awuc/wtoz H. 000a OFICE.

HARRY DODGE, 0F ,"PETERSBURG, VIRGINIA.

SHOCK-ABSORBER.

To all whom it may concern: Be it known that I, HARRY Donor, citizen of the United States, residingat Petersburg, in the county of Dinwiddie and State of Virginia, have invented certain new and useful Improvements in Shock-Absorbers, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to improvements in shock absorbers for vehicles and has for its primary object to provide a highly ellicient, durable and reliable device of this character which will absorb all shocks or jars in traveling over rough roads so that the same i will not be transmitted to the vehicle body.

The invention has for another and more specific object to provide a combination vehicle spring and pneumatic cushion support for the vehicle body, said cushion acting prevent undue compression of the springs and materially assisting in yieldably sustaining the bod of the vehicle and thereby greatly con ucing to the comfort of the occupants thereof.

My invention has for another of its ob jects to reduce a device of the above character em odying in its construction, spaced tubes connected at their ends each supplied with a valve, means for mountingsaid tubes between the opposed portions of an elliptical vehicle spring, and a s acing cushioning block centrally arranged etween the tubes.

Another object of the present invention is to generally improve and increase the serviceability of devices for the above purpose without increasing their cost of manufacture to any material extent. My invention hasfor a still further object to provide an improved cushioning means for the body of a vehicle whereby the use of pneumatic tires upon the vehicle wheels may be dispensed with, and metal or solid rubber tires may be used, thus eliminating the expenseincident to frequent punctures.

; With the above and other objects in view as will become apparent as the description.

proceeds, the invention consists in certain constructions, combinations and arrangements of the parts that I shall hereinafterfully describe and claim.

For a full understanding of the invention,

Specification of Letters Patent.

Application filed October 20, 1913.

Patented May 12, 1914. Serial No. 796,312.

reference is to be had to the following description and accompanying drawings, in which- Figure 1 is a side elevation of a shock absorber for vehicles constructed in accordance with the present invention; Fig. 2 is a top plan view thereof; Fig. 3 is asection taken on the line 33 of Fig. 1; Fig. 4: is a side elevation illustrating a slightly modified form of my invention; Fig. 5 is a section taken on the line 5--5 of F1 1.

Referring in detail to the drawings, 5 designates an elliptical vehicle spring which is preferably formed of a continuous length of resilient metal. It is to be understood, however, that the essential elements of the present invention are also adaptable to use in connection with the common form of elli tical vehicle spring in which the upper an lower portions of the spring each corisists of a. plurality of laminated spring plates.

Between the upper and lower portions of the elliptical spring plate 5, my improved pneumatic/- cushion is arranged. This cushion includes a pair of tubes 6 preferably, though not necessarily, connected at their ends by. fabric or other webbing indicated at 7. The tubes themselves are formed of rubber, upon which layers of canvas or duck are vulcanized or otherwise secured, and the whole is incased in an outer covering of cloth. It is, however, also obvious that the specific construction of these tubes may be otherwise than above stated, without afi'ect ing the operation of the device.

To the upper and lower portions of the sprin 5, elongated longitudinally extending s iiel plates 8 are secured. These plates are arranged between the longitudinal portions of the spring and their opposed faces are concave to provide seats for the oppositely bowed tubes (3. Each ol the tubes is centrally connected by the flexible straps 9' to one of said shield plates at the o posite edges thereof. 10 designates a plum ity of bolts extending through openings provided in each of the shield plates. These bolts are arranged in pairs and are connected by means of the clip plates 11 extendingtransversely of the spring 5, suitable nuts 12 be- 7. In a shock absorber, the combination cushioning medium, and. a resilient spacing with an elliptical vehicle .spring, of elonblock centrally arranged between said tubugated longitudinally extending shield plates lar members.

secured to the opposed portions of said In testimony whereof I hereunto'afiix my 5 spiiilng, a pair of tublular lmemlflers (slublstam signature in the presence of two witnesses. 15

tia y co-extensive in engti wit sai p ates,

flexible connections between said members HARRY DODGE and the respective shieldplates, each of said Witnesses:

members'being provided with a valve where- ROBERT G. BASS,

' 10 by the same may be supplied with a suitable Row. L. LEAFORD. 

